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HSChapter 90
U.S. imports of non-medical apparatus using alpha, beta, gamma or other ionizing radiation (HS 902229) totaled $18.8M in July 2026, traded with 21 countries.
Importers of Non-Medical Apparatus Using Alpha, Beta, Gamma or Other Ionizing Radiation paid $114K in duties in July 2026 — an effective duty rate of 10% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataIonizing-radiation apparatus used outside clinical settings — most notably smoke detectors (classified under 9022294000) and a broad residual category of other non-medical radiation apparatus (9022298000) — falls here. Mexico and China are the leading US import sources for this heading, with Norway, Italy, and Germany also represented. Smoke detectors using americium-241 (an alpha emitter) are the highest-volume commodity in this heading by unit count, while the residual line covers industrial gauges, level sensors, and similar instruments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.1K shipments/mo
Ionization-type smoke detectors use a small quantity of a radioactive isotope (typically americium-241) to ionize air in a detection chamber — making them apparatus based on the use of alpha radiation. This places them squarely within heading 9022 rather than among general electrical safety apparatus. The HTS specifically provides for them at the 10-digit level under 9022294000, distinguishing them from photoelectric smoke detectors classified elsewhere.
Apparatus in the residual line 9022298000 that incorporates sealed radioactive sources — such as industrial level gauges or density meters — may require an NRC or Agreement State license for the radioactive material itself, separate from any CBP entry requirements. Importers should determine whether the specific article contains licensed radioactive material and obtain the necessary authorizations before shipment arrives.
Subheading 6 of 8 in heading 9022
Subheading 902229 · $18.8M of $364.6M
Supplier Network
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ImportsExports
Imports
$18.8MYoY · Pro
Exports
$6.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9022294000 | Appts, Alpha,Beta,Etc Radiation for Smoke Detector | $17.5M | 0.00% | 0.00% | -- |
| 9022298000 | Appts, Alpha,Beta,Etc Radiation for Oth Use, NESOI | $1.2M | 9.47% | 94.70% | $114K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9022298000 | Appts, Alpha,Beta,Etc Radiation for Oth Use, NESOI | $6.2M |
| 9022294000 | Appts, Alpha,Beta,Etc Radiation for Smoke Detector | $85K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · July 2026
origin
Mexico and Germany together supply 97% of it.
customs district
destination
entry
rate provision · imports
93.9% enters free of duty; the effective duty rate is 0.61%.